To solve for \( x \) in the equation \( z = 2x - 3y \), we need to isolate \( x \) on one side of the equation. This involves rearranging the equation by performing algebraic operations.
Solution Approach
Add \( 3y \) to both sides of the equation to move the \( y \)-term to the left side.
Divide both sides by 2 to solve for \( x \).
Step 1: Add \( 3y \) to both sides
Starting with the equation:
\[
z = 2x - 3y
\]
we add \( 3y \) to both sides to isolate the term with \( x \):
\[
z + 3y = 2x
\]
Step 2: Divide both sides by 2
Next, we divide both sides of the equation by 2 to solve for \( x \):
\[
x = \frac{z + 3y}{2}
\]
Step 3: Substitute the given values
Given \( z = 10 \) and \( y = 2 \), we substitute these values into the equation:
\[
x = \frac{10 + 3 \cdot 2}{2}
\]
Step 4: Simplify the expression
Simplify the expression to find the value of \( x \):
\[
x = \frac{10 + 6}{2} = \frac{16}{2} = 8.0
\]